Hi,
With multiple receivers a fixed/fixed dishes is the best way to do it yes.
You have two choices, either fit quattro LNBs for each satellite and use a rather hefty multiswitch. I know you can get 17 in 6 out switches that would do 4 satellites and up to 6 receivers. I presume you can get them with more inputs.
Or for up to 4 satellites you can use Octo LNBs with very cheap 4-way Diseqc switches.
Not sure what $caye is but if you mean
Sky, you cant get it without a valid subscription.
Robbo